repetitive get function calls while getWorkitem with multiple returned_prop

returned_prop = "rtc_cm:defect_category, dc:identifier, rtc_cm:comments"
wi = myclient.getWorkitem(225670, returned_properties=returned_prop)

Simillar behaviour is there while using queryWorkitems or runSavedQueryByUrl also and it resulting into taking huge time to fetch all workitems and sometime int token expire

**Logs:**

2020-06-26 13:07:01,451 DEBUG urllib3.connectionpool: https://www.sscd.rtc.jlrint.com:443 "GET /ccm/oslc/workitems/225670?oslc_cm.properties=dc%3Aidentifier%2C%20rtc_cm%3Acomments%2C%20rtc_cm%3Astate%2C%20dc%3Adescription%2C%20oslc_cm%3Aseverity%2C%20rtc_cm%3Adefect_category%2Crtc_cm%3AcontextId HTTP/1.1" 200 1719
2020-06-26 13:07:01,456 DEBUG workitem.Workitem: Get response from https://www.sscd.rtc.jlrint.com/ccm/oslc/enumerations/_XQN1EB5SEemIkKwQMoULUw/DefectCategory_e/DefectCategory_e.literal.l12
2020-06-26 13:07:01,460 DEBUG urllib3.connectionpool: Starting new HTTPS connection (1): www.sscd.rtc.jlrint.com
2020-06-26 13:07:02,430 DEBUG urllib3.connectionpool: https://www.sscd.rtc.jlrint.com:443 "GET /ccm/oslc/enumerations/_XQN1EB5SEemIkKwQMoULUw/DefectCategory_e/DefectCategory_e.literal.l12 HTTP/1.1" 200 467
2020-06-26 13:07:02,436 DEBUG workitem.Workitem: Get response from https://www.sscd.rtc.jlrint.com/ccm/oslc/workitems/225670/rtc_cm:comments
2020-06-26 13:07:02,440 DEBUG urllib3.connectionpool: Starting new HTTPS connection (1): www.sscd.rtc.jlrint.com
2020-06-26 13:07:03,328 DEBUG urllib3.connectionpool: https://www.sscd.rtc.jlrint.com:443 "GET /ccm/oslc/workitems/225670/rtc_cm:comments HTTP/1.1" 200 7502
2020-06-26 13:07:03,332 DEBUG workitem.Workitem: Get response from https://www.sscd.rtc.jlrint.com/ccm/oslc/enumerations/_XQN1EB5SEemIkKwQMoULUw/severity/severity.literal.l4
2020-06-26 13:07:03,339 DEBUG urllib3.connectionpool: Starting new HTTPS connection (1): www.sscd.rtc.jlrint.com
2020-06-26 13:07:04,196 DEBUG urllib3.connectionpool: https://www.sscd.rtc.jlrint.com:443 "GET /ccm/oslc/enumerations/_XQN1EB5SEemIkKwQMoULUw/severity/severity.literal.l4 HTTP/1.1" 200 626
2020-06-26 13:07:04,199 DEBUG workitem.Workitem: Get response from https://www.sscd.rtc.jlrint.com/ccm/oslc/workflows/_XQN1EB5SEemIkKwQMoULUw/states/com.ibm.team.workitem.workflow.lightWeightDefectWorkflow/com.ibm.team.workitem.workflow.lightWeightDefectWorkflow.state.s6
2020-06-26 13:07:04,203 DEBUG urllib3.connectionpool: Starting new HTTPS connection (1): www.sscd.rtc.jlrint.com
2020-06-26 13:07:05,223 DEBUG urllib3.connectionpool: https://www.sscd.rtc.jlrint.com:443 "GET /ccm/oslc/workflows/_XQN1EB5SEemIkKwQMoULUw/states/com.ibm.team.workitem.workflow.lightWeightDefectWorkflow/com.ibm.team.workitem.workflow.lightWeightDefectWorkflow.state.s6 HTTP/1.1" 200 618
2020-06-26 13:07:05,226 DEBUG client.RTCClient: Get response from https://www.sscd.rtc.jlrint.com/ccm/oslc/workitems/225663?oslc_cm.properties=dc%3Aidentifier%2C%20rtc_cm%3Acomments%2C%20rtc_cm%3Astate%2C%20dc%3Adescription%2C%20oslc_cm%3Aseverity%2C%20rtc_cm%3Adefect_category%2Crtc_cm%3AcontextId
2020-06-26 13:07:05,232 DEBUG urllib3.connectionpool: Starting new HTTPS connection (1): www.sscd.rtc.jlrint.com