MR jobs are not triggered by non-code updates

### Jenkins and plugins versions report

Environment

```text
Jenkins: 2.452.2
OS: Linux - 6.5.0-35-generic
Java: 11.0.23 - Eclipse Adoptium (OpenJDK 64-Bit Server VM)
---
ant:497.v94e7d9fffa_b_9
antisamy-markup-formatter:162.v0e6ec0fcfcf6
apache-httpcomponents-client-4-api:4.5.14-208.v438351942757
asm-api:9.7-33.v4d23ef79fcc8
authentication-tokens:1.113.v81215a_241826
blueocean:1.27.13
blueocean-bitbucket-pipeline:1.27.13
blueocean-commons:1.27.13
blueocean-config:1.27.13
blueocean-core-js:1.27.13
blueocean-dashboard:1.27.13
blueocean-display-url:2.4.2
blueocean-events:1.27.13
blueocean-git-pipeline:1.27.13
blueocean-github-pipeline:1.27.13
blueocean-i18n:1.27.13
blueocean-jwt:1.27.13
blueocean-personalization:1.27.13
blueocean-pipeline-api-impl:1.27.13
blueocean-pipeline-editor:1.27.13
blueocean-pipeline-scm-api:1.27.13
blueocean-rest:1.27.13
blueocean-rest-impl:1.27.13
blueocean-web:1.27.13
bootstrap5-api:5.3.3-1
bouncycastle-api:2.30.1.78.1-233.vfdcdeb_0a_08a_a_
branch-api:2.1169.va_f810c56e895
build-timeout:1.32
caffeine-api:3.1.8-133.v17b_1ff2e0599
checks-api:2.2.0
cloudbees-bitbucket-branch-source:886.v44cf5e4ecec5
cloudbees-folder:6.928.v7c780211d66e
commons-lang3-api:3.14.0-76.vda_5591261cfe
commons-text-api:1.12.0-119.v73ef73f2345d
credentials:1337.v60b_d7b_c7b_c9f
credentials-binding:677.vdc9d38cb_254d
dark-theme:439.vdef09f81f85e
display-url-api:2.204.vf6fddd8a_8b_e9
durable-task:555.v6802fe0f0b_82
echarts-api:5.5.0-1
eddsa-api:0.3.0-4.v84c6f0f4969e
email-ext:1814.v404722f34263
favorite:2.208.v91d65b_7792a_c
font-awesome-api:6.5.2-1
git:5.2.2
git-client:5.0.0
github:1.39.0
github-api:1.318-461.v7a_c09c9fa_d63
github-branch-source:1789.v5b_0c0cea_18c3
gitlab-api:5.3.0-91.v1f9a_fda_d654f
gitlab-branch-source:704.vc7f1202d7e14
gitlab-plugin:1.8.1
gradle:2.12
gson-api:2.11.0-41.v019fcf6125dc
handy-uri-templates-2-api:2.1.8-30.v7e777411b_148
htmlpublisher:1.34
instance-identity:185.v303dc7c645f9
ionicons-api:74.v93d5eb_813d5f
jackson2-api:2.17.0-379.v02de8ec9f64c
jakarta-activation-api:2.1.3-1
jakarta-mail-api:2.1.3-1
javax-activation-api:1.2.0-7
javax-mail-api:1.6.2-10
jaxb:2.3.9-1
jenkins-design-language:1.27.13
jersey2-api:2.42-147.va_28a_44603b_d5
jjwt-api:0.11.5-112.ve82dfb_224b_a_d
joda-time-api:2.12.7-29.v5a_b_e3a_82269a_
jquery3-api:3.7.1-2
json-api:20240303-41.v94e11e6de726
json-path-api:2.9.0-58.v62e3e85b_a_655
junit:1265.v65b_14fa_f12f0
ldap:725.v3cb_b_711b_1a_ef
mailer:472.vf7c289a_4b_420
matrix-auth:3.2.2
matrix-project:832.va_66e270d2946
metrics:4.2.21-451.vd51df8df52ec
mina-sshd-api-common:2.12.1-113.v4d3ea_5eb_7f72
mina-sshd-api-core:2.12.1-113.v4d3ea_5eb_7f72
okhttp-api:4.11.0-172.vda_da_1feeb_c6e
pam-auth:1.11
pipeline-build-step:540.vb_e8849e1a_b_d8
pipeline-github-lib:61.v629f2cc41d83
pipeline-graph-analysis:216.vfd8b_ece330ca_
pipeline-graph-view:287.v3ef017b_780d5
pipeline-groovy-lib:727.ve832a_9244dfa_
pipeline-input-step:495.ve9c153f6067b_
pipeline-milestone-step:119.vdfdc43fc3b_9a_
pipeline-model-api:2.2198.v41dd8ef6dd56
pipeline-model-definition:2.2198.v41dd8ef6dd56
pipeline-model-extensions:2.2198.v41dd8ef6dd56
pipeline-stage-step:312.v8cd10304c27a_
pipeline-stage-tags-metadata:2.2198.v41dd8ef6dd56
plain-credentials:182.v468b_97b_9dcb_8
plugin-util-api:4.1.0
pubsub-light:1.18
resource-disposer:0.23
scm-api:690.vfc8b_54395023
script-security:1341.va_2819b_414686
snakeyaml-api:2.2-111.vc6598e30cc65
sse-gateway:1.27
ssh-credentials:337.v395d2403ccd4
ssh-slaves:2.968.v6f8823c91de4
structs:337.v1b_04ea_4df7c8
theme-manager:262.vc57ee4a_eda_5d
timestamper:1.27
token-macro:400.v35420b_922dcb_
trilead-api:2.147.vb_73cc728a_32e
variant:60.v7290fc0eb_b_cd
workflow-aggregator:596.v8c21c963d92d
workflow-api:1316.v33eb_726c50b_a_
workflow-basic-steps:1058.vcb_fc1e3a_21a_9
workflow-cps:3903.v48a_8836749e9
workflow-durable-task-step:1353.v1891a_b_01da_18
workflow-job:1400.v7fd111b_ec82f
workflow-multibranch:783.787.v50539468395f
workflow-scm-step:427.v4ca_6512e7df1
workflow-step-api:657.v03b_e8115821b_
workflow-support:907.v6713a_ed8a_573
ws-cleanup:0.46
```

### What Operating System are you using (both controller, and any agents involved in the problem)?

docker image: jenkins/jenkins:2.452.2-jdk11

### Reproduction steps

1. Create Gitlab Organization Folder with all the setup from homepage
2. Create a Merge Request to project which explored by Organization Folder job
3. Update Merge Request title/description

### Expected Results

Merge Request job is triggered

### Actual Results

No job is triggered even when the `Ignore builds for non-code related MR updates` option is turned off

### Anything else?

I got this log in Jenkins server indicated that update title **should build**


But in `Multibranch pipeline events` indicated that **there is no changes detected**


I've searched for log `no changes detected` but not found it in `gitlab-branch-source` code

### Are you interested in contributing a fix?

_No response_